The only WH game I played was the first one. I just didn't get on with it and I'm not entirely sure why. I like both TW and WHF, but the game seemed gimmicky and sterile. Like I said in my wall of text post on the last page, it feels like a theme park, dragging you by the nose from one "cool bit" to another. That's fine for some games (shooters, Uncharted-style adventure games) but for strategy games I find it really annoying. A sandbox experience where you can try different strategies or do gimmick/challenge runs once you've mastered it, that's my idea of a good time.
I haven't really liked a TW game since Medieval 2 (which I got relatively recently). I tried Empire looking for a more old-school experience, but it was horribly unstable, the naval combat was boring and confusing, and the AI in both the strategy and RTS bits was dumb as rocks, even by the standards of an older TW game.
Those people are gay retards. I've not seen much of that myself though, but I guess the Youtubers I watch (Many a True Nerd, Lugotorix, LegendofTotalWar) are all hardcore fans of the old games like me so the remaster is right up their street.